海水溶解氧标准指数计算新方法  

A New Method for Calculating Standard Index of Dissolved Oxygen in Seawater

作　　者：王保栋[1,2] 孙霞 谢琳萍[1] 辛明[1] WAND Bao-dong;SUN Xia;XIE Lin -ping;XIN Ming(The First Institute of Oceanography,SOA,Qingdao 266061,China;Fanction Laboratory for Marine Ecology and Environmental Science,Qingdao National Laboratory for Marine Science and Technology,Qingdao 266071,China)

机构地区：[1]国家海洋局第一海洋研究所,山东青岛266061 [2]青岛海洋科学与技术国家实验室海洋生态与环境科学功能实验室,山东青岛266071

出　　处：《海洋科学进展》2018年第3期460-464,共5页Advances in Marine Science

基　　金：国家自然科学基金委员会-山东省人民政府海洋科学研究中心联合资助项目--海洋生态与环境科学(U1606404)

摘　　要：溶解氧是海水水质评价的一个重要参数。但是,我国现行的溶解氧单因子标准指数计算方法,存在方法原理及科学依据不甚明确、评价结果有时不合理等问题,不能准确地反映海水水质状况。一般污染物的标准指数与其质量浓度呈正比关系,而溶解氧的标准指数与溶解氧质量浓度呈反比关系。基于这一反比关系及其他相关的科学研究事实,提出了溶解氧标准指数计算的新方法,该方法克服现行溶解氧单因子标准指数计算方法的缺点,并具有方法原理明确、逻辑推导清晰、评价结果合理且具有可比性、使用简便等优点,适用于海水溶解氧标准指数计算和水质评价,亦可应用于淡水体系。Dissolved oxygen is an important parameter for assessment of water quality.However,the current methods of calculating standard index of dissolved oxygen for assessment of seawater quality exists problems such as unclear in principle of the methods,insufficient scientific basis,unreasonable evaluation results etc.,which can not reflect the status of seawater quality objectively.In contrast to general pollutant whose standard index is in direct proportion to its concentration,the standard index of dissolved oxygen is inversely proportional related with the concentration of dissolved oxygen.Based on the above relationship as well as relevant scientific basis,a new method for calculating standard index of dissolved oxygen is proposed in this paper.This new method overcomes the shortcomings of the current methods,and has strong points such as clear principle and logical derivation,reasonable evaluation results,good comparability as well as ease of use,which is applicable for calculating standard index of dissolved oxygen for assessment of seawater quality as well as freshwater systems.

关 键 词：溶解氧 标准指数 水质评价 

分 类 号：P734[天文地球—海洋化学]